Page 341 - General Knowledge

GENERAL KNOWLEDGE 2019

166. The direction of deflection of a current-carrying conductor indicates the direction of:
A. Electric current
B. Force acting on it
C. Magnetic field
D. All of the above

167. Which device converts electrical energy into mechanical energy?
A. Motor
B. Generator
C. Windmill
D. Transformer

168. In which of the following devices is the electrical motor used?
A. Electric fans
B. Washing machine
C. Refrigerator
D. All of the above

169. In an electric motor, which device reverses the direction of current through a
circuit?
A. Carbon brush
B. Coil
C. Commutator
D. Permanent magnet

170. The carbon strips used to pass electric current to the coil are known:
A. Commutator
B. Magnet
C. Battery
D. Brushes

171. Which of the following device converts chemical energy in to electrical energy?
A. Battery
B. Loud Speaker
C. Solar Cell
D. Electric Motor

172. The energy possessed by a body due to its position is called:
A. Kinetic Energy
B. Potential Energy
C. Mechanical Energy
D. Electrical Energy

173. Joule is a unit of:
A. Work

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